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/*
*
* Copyright (c) 2020 Project CHIP Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @file
* The implementation of the Setup Payload. Currently only needed to
* verify the validity of a Setup Payload
*/
#include "SetupPayload.h"
#include <lib/core/CHIPCore.h>
#include <lib/core/CHIPVendorIdentifiers.hpp>
#include <lib/core/TLV.h>
#include <lib/core/TLVData.h>
#include <lib/core/TLVUtilities.h>
#include <lib/support/CodeUtils.h>
#include <utility>
namespace chip {
// Spec 5.1.4.2 CHIPCommon tag numbers are in the range [0x00, 0x7F]
bool SetupPayload::IsCommonTag(uint8_t tag)
{
return tag < 0x80;
}
// Spec 5.1.4.1 Manufacture-specific tag numbers are in the range [0x80, 0xFF]
bool SetupPayload::IsVendorTag(uint8_t tag)
{
return !IsCommonTag(tag);
}
// Check the Setup Payload for validity
//
// `vendor_id` and `product_id` are allowed all of uint16_t
bool PayloadContents::isValidQRCodePayload() const
{
// 3-bit value specifying the QR code payload version.
if (version >= 1 << kVersionFieldLengthInBits)
{
return false;
}
if (static_cast<uint8_t>(commissioningFlow) > static_cast<uint8_t>((1 << kCommissioningFlowFieldLengthInBits) - 1))
{
return false;
}
// Device Commissioning Flow
// 0: Standard commissioning flow: such a device, when uncommissioned, always enters commissioning mode upon power-up, subject
// to the rules in [ref_Announcement_Commencement]. 1: User-intent commissioning flow: user action required to enter
// commissioning mode. 2: Custom commissioning flow: interaction with a vendor-specified means is needed before commissioning.
// 3: Reserved
if (commissioningFlow != CommissioningFlow::kStandard && commissioningFlow != CommissioningFlow::kUserActionRequired &&
commissioningFlow != CommissioningFlow::kCustom)
{
return false;
}
chip::RendezvousInformationFlags allvalid(RendezvousInformationFlag::kBLE, RendezvousInformationFlag::kOnNetwork,
RendezvousInformationFlag::kSoftAP);
if (!rendezvousInformation.HasValue() || !rendezvousInformation.Value().HasOnly(allvalid))
{
return false;
}
// Discriminator validity is enforced by the SetupDiscriminator class.
if (setUpPINCode >= 1 << kSetupPINCodeFieldLengthInBits)
{
return false;
}
return CheckPayloadCommonConstraints();
}
bool PayloadContents::isValidManualCode() const
{
// Discriminator validity is enforced by the SetupDiscriminator class.
if (setUpPINCode >= 1 << kSetupPINCodeFieldLengthInBits)
{
return false;
}
return CheckPayloadCommonConstraints();
}
bool PayloadContents::IsValidSetupPIN(uint32_t setupPIN)
{
// SHALL be restricted to the values 0x0000001 to 0x5F5E0FE (00000001 to 99999998 in decimal), excluding the invalid Passcode
// values.
if (setupPIN == kSetupPINCodeUndefinedValue || setupPIN > kSetupPINCodeMaximumValue || setupPIN == 11111111 ||
setupPIN == 22222222 || setupPIN == 33333333 || setupPIN == 44444444 || setupPIN == 55555555 || setupPIN == 66666666 ||
setupPIN == 77777777 || setupPIN == 88888888 || setupPIN == 12345678 || setupPIN == 87654321)
{
return false;
}
return true;
}
bool PayloadContents::CheckPayloadCommonConstraints() const
{
// A version not equal to 0 would be invalid for v1 and would indicate new format (e.g. version 2)
if (version != 0)
{
return false;
}
if (!IsValidSetupPIN(setUpPINCode))
{
return false;
}
// VendorID must be unspecified (0) or in valid range expected.
if (!IsVendorIdValidOperationally(vendorID) && (vendorID != VendorId::Unspecified))
{
return false;
}
// A value of 0x0000 SHALL NOT be assigned to a product since Product ID = 0x0000 is used for these specific cases:
// * To announce an anonymized Product ID as part of device discovery
// * To indicate an OTA software update file applies to multiple Product IDs equally.
// * To avoid confusion when presenting the Onboarding Payload for ECM with multiple nodes
if (productID == 0 && vendorID != VendorId::Unspecified)
{
return false;
}
return true;
}
bool PayloadContents::operator==(const PayloadContents & input) const
{
return (this->version == input.version && this->vendorID == input.vendorID && this->productID == input.productID &&
this->commissioningFlow == input.commissioningFlow && this->rendezvousInformation == input.rendezvousInformation &&
this->discriminator == input.discriminator && this->setUpPINCode == input.setUpPINCode);
}
CHIP_ERROR SetupPayload::addOptionalVendorData(uint8_t tag, std::string data)
{
OptionalQRCodeInfo info;
info.tag = tag;
info.type = optionalQRCodeInfoTypeString;
info.data = std::move(data);
return addOptionalVendorData(info);
}
CHIP_ERROR SetupPayload::addOptionalVendorData(uint8_t tag, int32_t data)
{
OptionalQRCodeInfo info;
info.tag = tag;
info.type = optionalQRCodeInfoTypeInt32;
info.int32 = data;
return addOptionalVendorData(info);
}
std::vector<OptionalQRCodeInfo> SetupPayload::getAllOptionalVendorData() const
{
std::vector<OptionalQRCodeInfo> returnedOptionalInfo;
for (auto & entry : optionalVendorData)
{
returnedOptionalInfo.push_back(entry.second);
}
return returnedOptionalInfo;
}
CHIP_ERROR SetupPayload::removeOptionalVendorData(uint8_t tag)
{
VerifyOrReturnError(optionalVendorData.find(tag) != optionalVendorData.end(), CHIP_ERROR_KEY_NOT_FOUND);
optionalVendorData.erase(tag);
return CHIP_NO_ERROR;
}
CHIP_ERROR SetupPayload::addSerialNumber(std::string serialNumber)
{
OptionalQRCodeInfoExtension info;
info.tag = kSerialNumberTag;
info.type = optionalQRCodeInfoTypeString;
info.data = std::move(serialNumber);
return addOptionalExtensionData(info);
}
CHIP_ERROR SetupPayload::addSerialNumber(uint32_t serialNumber)
{
OptionalQRCodeInfoExtension info;
info.tag = kSerialNumberTag;
info.type = optionalQRCodeInfoTypeUInt32;
info.uint32 = serialNumber;
return addOptionalExtensionData(info);
}
CHIP_ERROR SetupPayload::getSerialNumber(std::string & outSerialNumber) const
{
CHIP_ERROR err = CHIP_NO_ERROR;
OptionalQRCodeInfoExtension info;
ReturnErrorOnFailure(getOptionalExtensionData(kSerialNumberTag, info));
switch (info.type)
{
case (optionalQRCodeInfoTypeString):
outSerialNumber = info.data;
break;
case (optionalQRCodeInfoTypeUInt32):
outSerialNumber = std::to_string(info.uint32);
break;
default:
err = CHIP_ERROR_INVALID_ARGUMENT;
break;
}
return err;
}
CHIP_ERROR SetupPayload::removeSerialNumber()
{
VerifyOrReturnError(optionalExtensionData.find(kSerialNumberTag) != optionalExtensionData.end(), CHIP_ERROR_KEY_NOT_FOUND);
optionalExtensionData.erase(kSerialNumberTag);
return CHIP_NO_ERROR;
}
CHIP_ERROR SetupPayload::addOptionalVendorData(const OptionalQRCodeInfo & info)
{
VerifyOrReturnError(IsVendorTag(info.tag), CHIP_ERROR_INVALID_ARGUMENT);
optionalVendorData[info.tag] = info;
return CHIP_NO_ERROR;
}
CHIP_ERROR SetupPayload::addOptionalExtensionData(const OptionalQRCodeInfoExtension & info)
{
VerifyOrReturnError(IsCommonTag(info.tag), CHIP_ERROR_INVALID_ARGUMENT);
optionalExtensionData[info.tag] = info;
return CHIP_NO_ERROR;
}
CHIP_ERROR SetupPayload::getOptionalVendorData(uint8_t tag, OptionalQRCodeInfo & info) const
{
const auto it = optionalVendorData.find(tag);
VerifyOrReturnError(it != optionalVendorData.end(), CHIP_ERROR_KEY_NOT_FOUND);
info = it->second;
return CHIP_NO_ERROR;
}
CHIP_ERROR SetupPayload::getOptionalExtensionData(uint8_t tag, OptionalQRCodeInfoExtension & info) const
{
const auto it = optionalExtensionData.find(tag);
VerifyOrReturnError(it != optionalExtensionData.end(), CHIP_ERROR_KEY_NOT_FOUND);
info = it->second;
return CHIP_NO_ERROR;
}
optionalQRCodeInfoType SetupPayload::getNumericTypeFor(uint8_t tag) const
{
optionalQRCodeInfoType elemType = optionalQRCodeInfoTypeUnknown;
if (IsVendorTag(tag))
{
elemType = optionalQRCodeInfoTypeInt32;
}
else if (tag == kSerialNumberTag)
{
elemType = optionalQRCodeInfoTypeUInt32;
}
return elemType;
}
std::vector<OptionalQRCodeInfoExtension> SetupPayload::getAllOptionalExtensionData() const
{
std::vector<OptionalQRCodeInfoExtension> returnedOptionalInfo;
for (auto & entry : optionalExtensionData)
{
returnedOptionalInfo.push_back(entry.second);
}
return returnedOptionalInfo;
}
bool SetupPayload::operator==(const SetupPayload & input) const
{
std::vector<OptionalQRCodeInfo> inputOptionalVendorData;
std::vector<OptionalQRCodeInfoExtension> inputOptionalExtensionData;
VerifyOrReturnError(PayloadContents::operator==(input), false);
inputOptionalVendorData = input.getAllOptionalVendorData();
VerifyOrReturnError(optionalVendorData.size() == inputOptionalVendorData.size(), false);
for (const OptionalQRCodeInfo & inputInfo : inputOptionalVendorData)
{
OptionalQRCodeInfo info;
CHIP_ERROR err = getOptionalVendorData(inputInfo.tag, info);
VerifyOrReturnError(err == CHIP_NO_ERROR, false);
VerifyOrReturnError(inputInfo.type == info.type, false);
VerifyOrReturnError(inputInfo.data == info.data, false);
VerifyOrReturnError(inputInfo.int32 == info.int32, false);
}
inputOptionalExtensionData = input.getAllOptionalExtensionData();
VerifyOrReturnError(optionalExtensionData.size() == inputOptionalExtensionData.size(), false);
for (const OptionalQRCodeInfoExtension & inputInfo : inputOptionalExtensionData)
{
OptionalQRCodeInfoExtension info;
CHIP_ERROR err = getOptionalExtensionData(inputInfo.tag, info);
VerifyOrReturnError(err == CHIP_NO_ERROR, false);
VerifyOrReturnError(inputInfo.type == info.type, false);
VerifyOrReturnError(inputInfo.data == info.data, false);
VerifyOrReturnError(inputInfo.int32 == info.int32, false);
VerifyOrReturnError(inputInfo.int64 == info.int64, false);
VerifyOrReturnError(inputInfo.uint32 == info.uint32, false);
VerifyOrReturnError(inputInfo.uint64 == info.uint64, false);
}
return true;
}
} // namespace chip